Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4343908 | Optical glass having n.sub.D =1.63.+-.(1.5.times.10.sup.-2), v.sub.D =59.5.+-.1.0 with a high chemical stability and a low tendency to crystallization | Volmar Geiler | 1982-08-10 |
| 4225459 | Glasses having a low non-linear refractive index for laser applications | Walter Jahn, Georg Krolla, Norbert Neuroth | 1980-09-30 |
| 4213786 | Lightweight, high refractive index glasses for spectacle lenses | Volkmar Geiler, Georg Gliemeroth | 1980-07-22 |
| 4213787 | High refractive index glasses of limited specific gravity for distance and near vision spectacle lenses | Volkmar Geiler, Georg Gliemeroth | 1980-07-22 |